Roof Overhang Passive Solar Design

Explanation of the role of roof overhangs to control solar gain examples of types of roof overhang in northern southern climates solar design handbook questions and answers about using roof overhangs roof overhang angle width height specifications for passive solar heating or cooling questions answers about the use of roof overhangs shading to control.

Roof overhang passive solar design.

Roof overhangs passive solar. This tool may not work in certain old browsers so in that case you may wish to try a different browser or use the old version feedback is welcome on this new tool and improvements continue to be made. 18 24 is a good rule of thumb i use 24 w a energy heel. I also urge you to read this article.

Borst engineering construction llc competence integrity and professionalism are integral to all that we do. Here s a link to a free web based tool to help you size roof overhangs on a passive solar building. This is a new overhang analysis tool providing visual feedback of the overhang shade at the selected date time as well as an annual performance chart. Jonr senior member posts 5341.

Ben we don t design overhangs primarily for passive solar these days old design rules no longer apply. There is simulation software like sam to do this. Because the sun travels different paths across the sky in the winter low and summer high time an overhang can be constructed to utilize and manipulate the heat energy. An overhang or some sort of solar control or solar shading is a crucial element in passive solar design because it blocks the sun s heat energy when it is not desired.

Borst passive solar roof overhang design calculator. User 757117 jul 16 2012 05 54pm 3. Cost effective passive solar design. Of course we don t want to solar shade either unless intentionally.